210222020069 has 2 divisors, whose sum is σ = 210222020070. Its totient is φ = 210222020068.

The previous prime is 210222020051. The next prime is 210222020101. The reversal of 210222020069 is 960020222012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210011392900 + 210627169 = 458270^2 + 14513^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222020069 - 2²⁸ = 209953584613 is a prime.

It is a super-2 number, since 2×210222020069² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210222020269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111010034 + 105111010035.

It is an arithmetic number, because the mean of its divisors is an integer number (105111010035).

Almost surely, 2^210222020069 is an apocalyptic number.

It is an amenable number.

210222020069 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222020069 is an equidigital number, since it uses as much as digits as its factorization.

210222020069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 210222020069 in words is "two hundred ten billion, two hundred twenty-two million, twenty thousand, sixty-nine".